As of version 10, Safari no longer supports most web plug-ins. Safari is optimized for content that uses the HTML5 web standard, which doesn’t require a plug-in. To enhance and customize your browsing experience, Apple recommends you use Safari extensions instead of web plug-ins.

How to Find Your Installed Safari Plug-Ins

Safari is the default web browser for the iPhone, iPad, and macOS. Safari is fast and powerful, able to serve up even the most advanced and interactive websites. For older versions of Safari (version 9 and earlier), plug-ins add functionality, letting users personalize their browsing experience. Here’s how to see what plug-ins you’ve installed on your Safari browser (version 9 and earlier).

How to Remove or Turn Off Plug-Ins

Plug-ins come with downsides. Poorly written ones can slow down Safari’s web rendering performance. They can also compete and cause stability issues or replace a program’s built-in functionality with less desirable methods that don’t work as well. Here’s how to turn off plug-ins.

How to Delete a Plug-In From Your Computer

To completely delete a plug-in from your computer, remove its file from your hard drive. Safari stores its plug-in files in /Library/Internet Plug-Ins/. To remove a plug-in, drag the file to the Trash. Drag the file to another location on your Mac to disable it but save it for later. Create a folder called Disabled Plug-ins to hold these files. If you change your mind later and want to reinstall the plug-in, drag it back to its original location.